﻿<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JavaScript脚本语言</title>

</head>

<body>
<script type="text/javascript">
var a;
a="JavaSript脚本语言";
document.write(a);
b="没有定义变量也可以使用哦！";
document.write(b);
</script>
</body>
</html>
